Type-writing machine.



O. G. KAVLE. TYPE WRITING MACHINE.

APPLICATION FILED JUNE 10, 1907. 1,018,062.;

Patented Feb. 20, 1912.

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Patented Feb. 20, 1912.

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0, G. KAV'LE.v TYPE WRITING MACHINE. APPLICATION FILED JUNE 10, 1907.

Patented Feb. 20, 1912.

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APPLICATION FILED JUNE 10, 1907. 1,018,062.

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Patented Feb. 20, 1912.

" the universal bar and UNITED STATES PATENT OFFICE.

OSCAR C. KAVLE, OF SYRACUSE, NEWYORK, ASSIGNOR TO HARVEY-A. MOYER, 0F

SYRACUSE, NEW YORK.

Specification of Letters Patent.

Application filed June 10, 1907. Serial No. 378,089.

bars, for operating the carriage escapement the r1bbon vibrator in orother part, such as visible writing machines, which is actuated whenevera type-key is operated to print a character.

The invention is especially applicable to visible writing machines inwhich the type strike the front side of the platen and which areprovided with means for vibrating the ribbon into and out of the typestrokes.

The principal objects of this invention are to reduce the dimensions andweight of its actuating devices so as to lessen the inertia thereof,thereby enabling greater speed of the machine with a lighter and easiertouch; also toprovide a sectional actuator, or separate independentactuators for the universal bar, each of which sections or actuators iscontrolled by only a port-ion of the type-bar actions, for the purposeof lessening the size and weight of the parts which must be moved tooperate the universal bar, and reducing the wear thereon; also to soconstruct and arrange the actuators as to insure uniform operation ofthe universal bar by the several type-bar actions; also to improve andsimplify the construction of the universal. bar and actuators in therespects hereinafter described and set forth in the claims.

In the accompanying drawings, consisting of four sheets: Figure 1 is a.fragmentary longitudinal sectional elevation of a frontstriketypewriting machine provided with universal bar mechanism embodying theinvention. Fig. 2 is a fragmentary transverse sectional elevationthereof, in line 2-2. Fig. 1. Fig. 3 is a fragmentary plan view thereof,partly :in section, omitting the parts above the broken away to disclosethe underlying parts. Fig. 4 is a transverse sectional elevation thereofin line 4i-4, Fig. 1. Fig. 5

printing position at 'bv an auxiliary lever f and link pinion h and rackbar It frame top plate, which is partly.

afragmentary longitudinal sectional elevation thereof in line 5-5, Fig.2.

modified construction.

Like letters of reference refer tolike parts in the several figures.

A, Fig. 1, represents the main frame of the machine having a top platea; B the platen; G the platen carriage; D a shift frame on which thecarriage is supported and travels transversely of themachine, and whichis pivoted at the upper rear m of the main frame to swing vertically forshifting the platen, and is moved up and down by a rod (1 and eccentricd; E one ofthe type-bars which are pivoted on a suitable support orsegment arranged vertically below the platen soas tostrike the frontside of the platen tomake the impression F one of the key levers, eachof which is operatively connected to one of the type-bars, as f; G theribbon or ribbons; g the vibrating guide for moving the ribbon orribbons to and from the printing position at the type strokes; and H the'escapement connected as by the to the carriage to produce thestep'by-step, or letter space, movements of the carriage. These partsmay be of known or any suitable construction and are only shown hereinand thus briefly described to aid in a better anglerstanding of theinvention. :9

I represents a rock shaft. or bar. which performs, in this machine, thefunctions of the universal bar and which will be hereinafter termed theuniversal bar, and K K represent actuators, or devices for actuatingsaid universal bar. The universal bar, in the machine shown, operatesboth the carriage escapement and the ribbon guide or vibrator and ispreferably arranged horizontally transversely of the machine in aposition in rear of the segment andbetween the carriage-escapement andthe ribbon guide or vibrator, rock or oscillate in suitable bearings Zon hearing brackets L secured to and depending from the top plate of themachine. These bearing brackets are conveniently made from sheet metalstampings bent into the shape best shown in Figs. 4 and 5. Theuniversalbar is very short, see Fig. 3, and consequently can be madeproportionately light and slender and yet be'as rigid as a largerPatented Feb. 20, 1912.

F g. '6 IS a fragmentary sectional elevation of a being journaled to barof "greater length. The universal baris provided with arms 77 2',Figs; 1. and 3, conveniently-made in one piece, which extend to oppositesides thereof, the former arm being connected by a rod F, or othermeans, to a lever or other part of the carriage escapement for operatingthe same, and the latter arm being connected by a link i and lever 2'guide 9 for vibrating it. The universal bar is also provided with twoother arms depending therefrom near its bearings and adapted to bestruck by the actuators for rocking the universal barn The arrangementof the arms on the universal bar and the direction in which they projecttherefrom depends upon the relative location of the universal bar, itsactuators and the parts actuated thereby, and may difi'erfor differentarrangements of such parts.

The universal bar actuators K K are preferably arranged above .thetype-bar segment in a position to be struck by the typebars just beforethe latter strike the platen, so that the actuators 'will be strucksharp blows and driven quickly rearwardly. The actuators consist of thinbars or strips which are preferably curved and arranged end to endconcentrically with the type-bar segment or pivot bearings, and rigidlyconnected rearwardly-extending stems or rods 79. The bars extend from apoint near the center of the segment approximately to the ends thereof,each being long enough to be struck and operated by the adjacent half ofthe type-bars on the segment. Each actuator preferably has two stems orrods 70 which extend rearwardly from the actuator at substantially equaldistances from its ends, through suitable guide holes in the bearingbracket L in rear thereof. ,7

M, Figs. 1 and '2, represents rocking hangers having relatively longshafts pivoted to suitable lugs or bearings m, on the front portion ofthe top plate a, and arms depending from the ends of said shafts andpivoted at their lower endsto the guide rods or stems of the actuators.The hangers M and bearing brackets L movably support the actuators. Therocking hangers for the actuators are arranged at the opposite sides ofthe center of the segment at an angle to each other and substantially atrightangles to radial lines passing through the printing point, thecenters of the actuators, and the segment at points half way between itscenterand ends, so that the actuators will always be held parallel withthe plane of'the segment and both ends of each actuator will move thesame distance when the. actuator is struck by a type-bar no matter atWhat portion of its length the type-bar strikes it. The arms of therocking hanger being seaccd a relatively great distance apart: acid thestability of the actuator.

I L the actuator, is or other connections, to the ribbon Thisarrangement of the actuators permits the escapement to be adjusted totrip at the best time to produce the greatest speed of the machine, asthere .is no objectionable variation in the action of differenttypebars. One of the stems of each actuator, preferably the one nearestthe inner end of arranged in front of each of the depending arms i ofthe universal bar so as to'strike the same to rock the universal barwhen the actuator is driven rearwardly. The actuators and universal barare normally held in the position shown in the drawings, and returned tosuch position after actuation by a suitable spring or springs, separatesprings being preferably employed for the actuators and the universalbar. As shown, coil springs n surrounding the stems of the actuatorsbetween shoulders thereon and the bearing brackets L are employed forreturning the actuators, and springs a attached to the depending arms ofthe universal bar and to forwardlyextending parts a of the bearingbrackets L, for returning the universal bar. The.

separate springs acting independently on the actuators and universal barare preferable as thereby the movement of onepart is not dependent uponthat of the other. The universal bar can then be arrested in its returnmovement in such position, see Fig. 1, that its depending arms are heldout of contact with or spaced slightly from the actuator stems. Theescapemcnt lever limits the return movement of the universal bar andholds its depending arms out of actual contact with the actuator stemsin the normal position of the parts. This arrangement enables a. slightmovement of the actuators before the universal bar is engaged androcked, thereby permitting the actuators to be started and their inertiaovercome before they act upon the universal bar, which permits a quickerand easier operation of the universal bar and the escapelnent. Theseparate springs for the actuators and universal bar also allow theformer to return in advance of the latter or during the small fractionof time required for the operation of the escapement, the actuators thusserv; ing to start the type-bars quickly on their return movement, andfurther assisting in the possible speed of the machine. Furthermore thisarrangement admits of slight variation in the adjustment of theescapement connection with the arm The actuators are independent of eachother and as both 'cannot be struck by the same type-bar only one can bemoved at a time. The short actuators can be made lighter than a singlelong one without making them less rigid, and the short, light actuatorcombined with the short universal bar greatly reduces the weight of theparts that move with each. character printed. The

universal bar with either of the actuators weighs less than half as muchas the parts that do thesa-me work in machines as more commonlyconstructed, and this saving in weight is accomplished in the parts thathave the greatest influenceon the speed of the machine. The essentialidea is to. provide a short, light universal bar, withiseparate lightactuators each arranged to transmit motion from a part only of the typeactuating. keys or levers. Not only is the weight of the parts whichmust be moved with each character printed lessened, but the work oftripping the. escapement is divided between the actuators, and the wear;on the actuatorsand their bearings is halved and wear. in these' partsis more harmful than in the universal bar as it causes an unequal actionin the type-bars.- The universal bar and its bearings are subject togreater wear than either of the actuators, but owing to its littleweight it does not wear as rapidly as a larger, heavier bar, and theuniversal bar located and mounted as described can be easily replaced atsmall expense.

'The two actuators are preferably curved and arranged concentricallywith the typebar pivots to be actuated directly by the type-bars asdescribed, but the advantages of such arrangement would be realized inpart, at least, by-the use of two separate actuators, or a two-partactuator, arranged for. each actuator. or part to be acted upon byone-half of the key leversor other parts of the type actions. Forexample, Fig. 6 shows a construction in which the universal baractuators K one of which is shown, are arranged in rear of the upperends of the auxiliary levers f to be struck and actuated by these leversand the connecting links f.

The auxiliary levers and links could be constructed for either one ofthese parts to project far enough beyond the other to alone strike theactuators, if preferred. The auxiliary levers are arranged in rear ofthe type-bar segment to be moved rearwardly by The actuators anduniversal bar are constructed and 'mounted as in the former constructionexcept that they are located a little farther to the rear in themachine.

I claim as my invention: 1. In a typewriting machine, the combination ofa series oftype actions, a rocking universal bar, an escapement operatedby said universal bar, and a pair of universal Jar actuators each actingto transmit motion from. one half of the type actions to the universalbar, substantially as set forth.

2. In a. typewriting machine, the combination of a series of typeactions, a carriage escapement, a 'ribbon vibrator, a unlversal bararranged at the rear portion of the ma.-

chine between said escapement and said ribbon vibrator and operativelyconnected to each, and a plurality of universal bar actuators eachacting to transmit motion from a plurality of said typeactions to theuniversa l bar, substantially as set forth. 4

a typewriting machine, the combination of a series of type actions, arocking universalbar, an escapement operated by said universal bar, aribbon vibrator also operated by the universal bar, and a pair ofindependent, universal bar actuators each acting to transmit motion fromone half of the type actions to the universal bar, substantially as setforth.

4. In a typewriting machine, the combina tion of aseries of typeactions, a rocking universal bar, a ribbon vibrator, an escapement,connections to transmit motion from the universal bar to the vibratorand escapement in diilrent-directions, and a pair-of independentuniversal bar actuators each serving to transmit motion from one half ofthe type-actions to the universal bar,

- substantially as set 1 forth.

5. In a typewriting machine, the combinahlOl'l of a universalbarconsisting of a rock shaft having rigid arms projecting therefrom inthree difierent directions, an actuator actingon one of said arms, andan escapement and ribbon vibrator each. of which is connected to one ofthe two remaining arms, substantially as set forth.

6. In a typewriting machine, the combination of a vertically arrangedsegment, a series of type-bars mounted thereon, a pair of actuatorsarranged substantially conceneach actuator. independently to transmitmotion to the escapement, substantially as set forth.

7. In a typewriting machine, the combination of a segment, a series oftype-bars mounted thereon, a,pair of curved universal bar actuatorsarranged each to be struck by one half. of the type-bars, and auniversal bar having a part opposite to' each actuator to receive motionfrom either actuator independently of the other, substantially as setforth.-

8. In a typewriting machine, the combination of a vertically arrangedsegment, a

series of type-bars mounted thereon, a pair of independent universal baractuators arranged each to be struck by one half of the type-bars, andeach having a rearward extension, and a universal bar having arms to beengaged by extensions of said actuators, substantially as set forth.

9. In a typewri-ting machine, the combination of a vertically arrangedsegment, a series of type-bars mounted thereon, a pair of independentcurved universal bar actuators each extending substantially one half thelength of the segment and substantially concentric therewith, rearwardlyextending supportsc'onnected to the actuators, and a rocking universalbar having a projecting arm'tobe struck by one of the supports for eachactuator, substantially as set forth.

' 10.. .In a typewrit-ing machine, the combination of a'segment', aseries of type-bars mounted thereon, a pair of independent universal baractuators. arranged "each to be struck by one half of the type-bars, a'

universal barhaving parts located opposite to the inner end of bothactuators to be moved by either of them, and'separate retracting springsfor the universal bar and for each of the actuators, substantially as,set forth.

11. In a typew-riting. machine, the combination of a segment, a seriesof type-bars mounted thereon, a rocking universal bar, and a. pair ofactuators each actuated by one half of the type-bars, and each actingindependently of the other directly on the universal bar, substantiallyas set forth.

12. In a typewriting machine, the combination of a-segment, a series oftype-bars ,mounted thereon, a rocking universal bar,

nation of a series of pivoted type-bars, a rocking universal bar, anactuator for said universal bar disconnected from said universal bar andarranged tov transmit motion from the type-bars to said universal bar,and a rocking support for said actuator,

substantially as set forth.

15. In a typewriting machine, the combination of a segment, a series oftype-bars mounted thereon, universal bar actuators, a rocking supportplvotally connected to each ofthe actuators, and a universal bararranged to be actuated by each of ators, substantially as set forth,

16. In a typewriting machine, the combination of a segment, a series oftype-bars mounted thereon, a pair of independent actuatorseach actuatedby one half of the type-bars, a pair of'rocking supports for saidactuators arranged at right angles to radial lines passing through theprinting said actu- 14. In atypew'riting machine, the combimountedthereon, independent actuators each actuated by a portion of thetype-bars, a rearWardly-extending stem connected toeach actuator, guidebearings for each of said stems, a universal bar actuated by each ofsaid stems, and a ocking support having a pair of arms pivoted to eachof said actuators, substantially as set forth.

18. In a typewriting machine, the combination of a segment, a series oftype-bars mounted thereon, independent segmental actuators each actuatedby a portion of the type-bars, a pair of rearWardly-extending slidingsupports for each actuator, a universal bar having an arm or leverarranged to be actuated by one of each pair of said supports, and aretracting spring arranged on one support of each pair, substantially asset forth.

19. In a typewriting machine, thecombination of a segment, a series oftypebars mounted thereon, independent segmental actuators each actuatedby a portion of the type-bars, rocking supports having arms pivotallyconnected to each actuator sub s'tantially midway between its center andends, a universal bar having arms substantially opposite to the innerarms of said rocking supports, and connections between each arm of theuniversal bar and the inner arm of one rocking support, substantially asset forth. I

20. In a typewriting machine, the combination of a series of type-barspivoted on .a substantially vertical segment, a two-part segmental.universal bar actuator arranged adjacent to the type-bar pivots, a pairof rocking supports in rear of and above said segment and having theirinner ends located near the center of the segment. said rocking supportsextending outwardly and up Wardly toward the ends of the type-barsegment, each rocking support having a pair of arms pivotally connectedto each part of the actuator, a rocking universal bar common to bothactuators, and connecting means between said universal bar and each ofthe actuators. substantially as set forth.

' Witness my hand, this 6th day of June, 1907.

OSCAR C. KAVLE.

Witnesses:

Orro A. SCHILLY, CHESTER. H. Ram.

